Perhaps you should try some spelling variations:
chiet tach » chieu sach
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
thong cua » thong quan, thong tu, huong cua
ho chiet » ho chieu, ho thiet, hoc thiet
cong san » cong tac
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - thanh ((thong cua) or (truong cua)) nhung cong san ((phan cau) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh ((thong cua) OR (truong cua)) nhung cong san ((phan cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - thanh ((thong cua) or (truong cua)) nhung cong san ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh ((thong cua) or (truong cua)) nhung cong san ((phan cau) OR (phan dau))*.